"A" sounds the best and is for sure the correct answer!
39. A (you just need to use context clues)
40. D
41. B
42. C
The subject of the sentence "I read your blog post on the website" is "I". You can find the subject by asking yourself what is the person, place, or thing that is doing the 'doing' or is 'verbed'. Hope this helps! :)
